The BBC today said it was "appalled" that some of the offences by Jimmy Savile "were committed on its premises", adding that it "would like to restate our sincere apology to the victims of these crimes".

In early December, the Trust published the terms of reference for its internal investigation into matters relating to Jimmy Savile's long-standing involvement with the Leeds Teaching Hospitals as a volunteer and fundraiser.

This will be a thorough and detailed piece of work and will be carried out in conjunction with parallel investigations by the Department of Health and other NHS trusts.

Work is now under way and we expect our report will be ready towards the end of this year.

Detective Superintendent David Gray, from the Met's paedophile unit, said Savile must have thought about his sex offending "every minute of every waking day":

Much as I think Savile could turn up at a hospital and expect to be given a warm welcome, he went to a number of schools because children had written to him. His peak offending came with the peak of his success.

The sheer scale of Savile's abuse over six decades simply beggars belief. He is without doubt one of the most prolific sex offenders we have ever come across and every number represents a victim that will never get justice now he is dead. But with this report we can at least show his victims that they have been taken seriously and their suffering has been recognised.

– Peter Watt, NSPCC

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